20374445

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6397}}^1$

素因数の和:6429

約数の個数: 24

約数和(自身を含む): 30633624

約数和(自身を除く): 10259179

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 6397, 31985, 44779, 83161, 223895, 313453, 415805, 582127, 1567265, 2910635, 4074889, 20374445]

約数ペア:

[(1, 20374445), (5, 4074889), (7, 2910635), (13, 1567265), (35, 582127), (49, 415805), (65, 313453), (91, 223895), (245, 83161), (455, 44779), (637, 31985), (3185, 6397)]